5-2%

Ibisobanuro bigufi:

Irangi ridasibangana, rishobora gukoreshwa hamwe na brush, ikaramu yerekana ikimenyetso, gutera cyangwa gushira intoki z'abatora mu icupa, irimo nitrate ya silver.Ubushobozi bwayo bwo kwanduza urutoki mugihe gihagije - muri rusange amasaha arenga 12 - biterwa cyane nubunini bwa nitrate ya silver, uburyo ikoreshwa nigihe iguma kuruhu no kurutoki mbere yuko wino ihanagura.Ibiri muri nitrate ya silver bishobora kuba 5%, 7%, 10%, 14%, 15%, 20%, 25%.
Ikaramu idasibangana ikoreshwa ku rutoki (ubusanzwe) rw'abatora mu gihe cy'amatora hagamijwe gukumira uburiganya bw’amatora nko gutora kabiri.Nuburyo bwiza bwibihugu aho ibyangombwa biranga abenegihugu bidahora bisanzwe cyangwa ibigo.